3 doctors weighed in:
White blister in the mouth? Hurts only a little bit. What could it be?
3 doctors weighed in

Dr. John Ebner
Dermatology
1 doctor agrees
In brief: Oral Apthous Ulcer
Canker sores (apthous ulcers) are shallow erosions with a white center surrounded by a ring of pink to red inflammation.
They can be minimally painful to severely painful. They usually take about 1 week to heal. If they do not heal, have it checked out. There are many causes for blisters/erosions in the oral cavity and differentiating the cause is important for long term treatment decisions.

In brief: Oral Apthous Ulcer
Canker sores (apthous ulcers) are shallow erosions with a white center surrounded by a ring of pink to red inflammation.
They can be minimally painful to severely painful. They usually take about 1 week to heal. If they do not heal, have it checked out. There are many causes for blisters/erosions in the oral cavity and differentiating the cause is important for long term treatment decisions.
Dr. John Ebner
Dr. John Ebner
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In brief: Aphthous Ulcer
An aphthous ulcer called canker sore is most likely.
There are other things, so you should see a dentist for a diagnose and treatment.

In brief: Aphthous Ulcer
An aphthous ulcer called canker sore is most likely.
There are other things, so you should see a dentist for a diagnose and treatment.
Dr. Simon Rosenberg
Dr. Simon Rosenberg
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